1、December 2016 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 83.100!%z“2595787www.din.deDIN
2、EN ISO 4590Rigid cellular plastics Determination of the volume percentage of open cells and of closed cells (ISO 4590:2016);English version EN ISO 4590:2016,English translation of DIN EN ISO 4590:2016-12Harte Schaumstoffe Bestimmung des Volumenanteils offener und geschlossener Zellen (ISO 4590:2016)
3、;Englische Fassung EN ISO 4590:2016,Englische bersetzung von DIN EN ISO 4590:2016-12Plastiques alvolaires rigides Dtermination du pourcentage volumique de cellules ouvertes et de cellules fermes (ISO 4590:2016);Version anglaise EN ISO 4590:2016,Traduction anglaise de DIN EN ISO 4590:2016-12Supersede
4、sDIN EN ISO 4590:200308www.beuth.deDocument comprises 29 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN ISO 4590:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 4590:2016)
5、has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: SAC, China) in collaboration with Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee
6、 Materials Testing), Working Committee NA 062-04-37 AA Prfung von Weich- und Hartschumen. The DIN Standard corresponding to the International Standard referred to in Clause 2 of this standard is as follows: ISO 1923 DIN EN ISO 1923 Amendments This standard differs from DIN EN ISO 4590:2003-08 as fol
7、lows: a) an Introduction has been added; b) Clause 1 “Scope has been revised; c) test method 2 has been renamed as test method 2a; d) test method 2b has been added (see 9.5 to 9.9); e) a schematic diagram of the apparatus for method 2b has been added (see Figure 7). Previous editions DIN ISO 4590: 1
8、986-11 DIN EN ISO 4590: 2003-08 National Annex NA (informative) Bibliography DIN EN ISO 1923, Cellular plastics and rubbers Determination of linear dimensions EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4590 August 2016 ICS 83.100 Supersedes EN ISO 4590:2003English Version Rigid cellula
9、r plastics - Determination of the volume percentage of open cells and of closed cells(ISO 4590:2016) Plastiques alvolaires rigides - Dtermination du pourcentage volumique de cellules ouvertes et de cellules fermes (ISO 4590:2016) Harte Schaumstoffe - Bestimmung des Volumenanteils offener und geschlo
10、ssener Zellen (ISO 4590:2016) This European Standard was approved by CEN on 1 July 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lis
11、ts and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under
12、 the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yu
13、goslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP
14、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4590:2016 EForeword .4Introduction .51 Scope . 62 Normativ
15、e references 63 Terms and definitions . 64 Principle 75 Test specimens 75.1 Number 75.2 Preparation 85.3 Dimensions . 85.4 Sectioning of test specimens . 86 Conditioning and test atmospheres 87 Measurement of surface area S and geometrical volume Vg. 88 Determination of impenetrable volume Viby meth
16、od 1: pressure variation (pyknometer) 98.1 Principle of method 1 .108.2 Description of apparatus for method 1 .108.3 Calibration of pyknometer apparatus 128.4 Procedure for method 1 .138.5 Calculation for method 1 .149 Determination of impenetrable volume Viby method 2: volume expansion .149.1 Princ
17、iple of method 2 .149.2 Description of apparatus for method 2a 159.3 Calibration of apparatus for method 2a . 169.4 Procedure and calculation for method 2a 199.5 Description of apparatus for method 2b . 199.6 Calibration of apparatus for method 2b . 209.7 Test procedure for method 2b 209.8 Test sequ
18、ence for method 2b . 219.9 Calculations and expression of results for method 2b 2210 Correction for specimen surface cells opened during specimen preparation 2210.1 For the pressure-variation method (see Clause 8) .2210.2 For the volume-expansion method (see Clause 9) 2211 Expression of results .231
19、1.1 Apparent volume percentage of open cells .2311.2 Corrected volume percentage of open cells 2312 Precision 2413 Test report 25Annex A (normative) Notes on procedure .26Contents PageEN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12 2European foreword .3European foreword This document (EN ISO 4590:2016)
20、 has been prepared by Technical Committee ISO/TC 61 “Plastics” in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsemen
21、t, at the latest by February 2017, and conflicting national standards shall be withdrawn at the latest by February 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identify
22、ing any or all such patent rights. This document supersedes EN ISO 4590:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
23、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorseme
24、nt notice The text of ISO 4590:2016 has been approved by CEN as EN ISO 4590:2016 without any modification. EN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The w
25、ork of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-govern
26、mental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in t
27、he ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the poss
28、ibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list o
29、f patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as
30、information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 10, Cellular plastics.This third edition cancels and replaces
31、 the second edition (ISO 4590:2002), which has been technically revised with the following changes: changes on Clause 2; introduction of a new test method based on the variation of the volume which is named 2b and is explained under 9.5 to 9.7; references to the test methods have been revised conseq
32、uently and the cross references; some editorial updates have been introduced.EN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12 4 IntroductionThe method 2b is included in order to update the basics of the method with the modern apparatus. This International Standard kept the same measurement equipment sin
33、ce the first version of 1981 and new test equipment has been included in accordance with the technical advances. The equipment, its performance and calibration, and the calculation of the new method are described in 9.5 to 9.9.EN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12 5 1 ScopeThis International
34、Standard specifies a general procedure for the determination of the volume percentage of open and of closed cells of rigid cellular plastics, by measurement first of the geometrical volume and then of the air-impenetrable volume of test specimens.The procedure includes the correction of the apparent
35、 open-cell volume by taking into account the surface cells opened by cutting during specimen preparation. Three alternative methods (method 1, method 2a and method 2b), and corresponding apparatus, are specified for the measurement of the impenetrable volume.2 Normative referencesThe following docum
36、ents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1923, Cellular plastics
37、 and rubbers Determination of linear dimensions3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1surface areaStotal surface area of the test specimen determined by measuring its geometrical dimensions3.2geometrical volumeVgvolume of the test speci
38、men determined by measuring its geometrical dimensions3.3surface/volume ratiorratio SVgfor the test specimen3.4impenetrable volumeVivolume of the test specimen into which air cannot penetrate and from which gas cannot escape, under the test conditionsEN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12 6 3.
39、5apparent volume percentage of open cellsrratioVVVgig100Note 1 to entry: It includes the volume of the cells opened during cutting of the test specimen, and depends on the nature of the cellular plastic under test and on the surface/volume ratio r of the test specimen.3.6corrected volume percentage
40、of open cells0apparent volume percentage of cells r, corrected to take into account the surface cells opened by cutting during preparation of the test specimenNote 1 to entry: It is the limit of the apparent volume percentage of open cells r, as the surface/volume ratio r approaches zero.3.7correcte
41、d volume percentage of closed cells0volume percentage remaining after accounting for the corrected volume percentage of open cells00100=Note 1 to entry: This percentage includes the volume of the cell walls.4 PrincipleThe surface area S and geometrical volume Vgof a number of test specimens, each ha
42、ving a different geometrical surface/volume ratio r, is determined.The impenetrable volume Viis determined by either of two methods, namelya) method 1 by pressure variation (pyknometer), andb) method 2 by volume expansion.The determination of the impenetrable volume Viis based on the application of
43、the Boyle-Mariotte law to a gas confined in an indeformable chamber, first in the absence and then in the presence of a test specimen.The apparent volume percentage of open cells rof the test specimen is calculated by plotting the curve r= f(r) and extrapolating to r = 0, followed by calculation of
44、the corrected volume percentage of open cells 0and the corrected volume percentage of closed cells 0.5 Test specimens5.1 NumberA minimum of three test specimens shall be prepared for each test. A total of three tests shall be carried out per test specimen.EN ISO 4590:2016 (E) DIN EN ISO 4590:2016-12
45、 7 5.2 PreparationCut test specimens out with a band saw and machine them if necessary, taking care that there is no deformation to the original cell structure other than at the surface. The specimens shall be free of dust, voids and moulding skins.Hot-wire cutting shall not be used.5.3 DimensionsTh
46、e required test specimen dimensions depend on the specific method used to measure the impenetrable volume Vi. Initial specimen sizes shall be as follows. Method 1: Pressure variation (pyknometer) and method 2blength: (25 1) mmwidth: (25 1) mmthickness: (25 1) mm Method 2a: Volume expansionlength: (1
47、00 1) mmwidth: (30 1) mmthickness: (30 1) mm5.4 Sectioning of test specimensAll three methods require that specimens r2and r3of each set be further sectioned as shown in Figure 1 to provide a range of surface/volume ratios for testing.6 Conditioning and test atmospheresThe test specimens shall be co
48、nditioned for not less than 16 h at (23 2) C and (50 5) % relative humidity prior to testing. It is important that the test be conducted at (23 2) C and preferably at controlled and moderate humidity, i.e. (50 5) %.7 Measurement of surface area S and geometrical volume Vg7.1 Determine the linear dimensions of each test specimen in accordance w
